Change default "find path" behavior and associated flag.

[barrycaceres]

Upon completion of GDEV-3833 task to update the "find path" behavior, then following must occur

• The parameter name to "find path" function will change from exclusions to avoidances, or avoids (SDK team needs to decide)

• Called native C functions must use the new C function naming where the word Exclude is replaced with Avoid

• Documentation of default behavior of the findPath____ functions will needs to reflect that it now treats exclusions/avoidances similar to GPS routing with avoidances. It will only use the avoided entities as a last resort to find a path (route)

• The SZ_FIND_PATH_PREFER_EXCLUDE flag name will change to SZ_FIND_PATH_STRICT_AVOID and the meaning of the flag will be flipped so that it now forbids the use of avoided entities to find the path

• Update unit tests to verify the avoidances are handled properly with the new behavior.

[barrycaceres]

Resolved